Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/12 and 15/80

1st number: 7 6/12, 2nd number: 15/80

90/12 + 15/80 is 123/16.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 80 is 240
  2. For the 1st fraction, since 12 × 20 = 240,
    90/12 = 90 × 20/12 × 20 = 1800/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    15/80 = 15 × 3/80 × 3 = 45/240
  4. Add the two fractions:
    1800/240 + 45/240 = 1800 + 45/240 = 1845/240
  5. 1845/240 simplified gives 123/16
  6. So, 90/12 + 15/80 = 123/16
    In mixed form: 711/16

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com